staging: wilc1000: refactor wilc_parse_network_info() using kernel framework api's

Refactor wilc_parse_network_info() by making use of cfg80211.h provided
API.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>